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1. A soft yellowish or whitish emulsion of butterfat, water, air, and sometimes salt, churned from milk or cream and processed for use in cooking and as a food.
2. Any of various substances similar to butter, especially:
a. A spread made from fruit, nuts, or other foods: plum butter; cashew butter.
b. A vegetable fat having a nearly solid consistency at ordinary temperatures.
tr.v. but·tered, but·ter·ing, but·tersPhrasal Verb:
To put butter on or in.
To praise or flatter excessively: You're always buttering up the boss.
[Middle English butere, from Old English, from Latin būtȳrum, from Greek boutūron : bous, cow; see gwou- in Indo-European roots + tūros, cheese; see teuə- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Cookery) having had butter spread over or applied to it
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014